60331-23-1999 Essais de Cables Electriques Soumis Au Feu - Integrite des Circuits - Partie 23: Procedures et Prescriptions - Cables Electriques de Donnees (Edition 1.0)
Tests for Electric Cables under Fire Conditions - Circuit Integrity - Part 23: Procedures and Requirements - Electric Data Cables (Edition 1.0)
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This part of IEC 60331 specifies the test procedure and gives the performance requirement@ including a recommended flame application time@ for electric data cables required to maintain circuit integrity when subjected to fire under specified conditions.It describes the means of sample preparation@ continuity checking arrangements@ electrical testing procedure@ method of burning the cables and gives requirements for evaluating test results.It covers electric data cables which have no rated voltage and are used for extra low voltage circuits.